CN116646420A - Automatic solar cell wire mesh laser sintering equipment - Google Patents
Automatic solar cell wire mesh laser sintering equipment Download PDFInfo
- Publication number
- CN116646420A CN116646420A CN202310459714.8A CN202310459714A CN116646420A CN 116646420 A CN116646420 A CN 116646420A CN 202310459714 A CN202310459714 A CN 202310459714A CN 116646420 A CN116646420 A CN 116646420A
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- China
- Prior art keywords
- laser sintering
- laser
- silicon wafer
- transmission device
- turntable
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000149 argon plasma sintering Methods 0.000 title claims abstract description 50
- 230000005540 biological transmission Effects 0.000 claims abstract description 39
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 37
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 37
- 239000010703 silicon Substances 0.000 claims abstract description 37
- 230000000007 visual effect Effects 0.000 claims abstract description 21
- 238000005245 sintering Methods 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims abstract description 14
- 238000007639 printing Methods 0.000 claims abstract description 12
- 238000002844 melting Methods 0.000 claims abstract description 8
- 230000008018 melting Effects 0.000 claims abstract description 8
- 238000007711 solidification Methods 0.000 claims description 6
- 230000008023 solidification Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000001723 curing Methods 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 239000000428 dust Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 238000011068 loading method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/1804—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof comprising only elements of Group IV of the Periodic Table
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention provides a solar cell silk screen laser sintering automation device which comprises a printing turntable, an image positioning system, a laser sintering system, a feeding transmission device, a silicon wafer guide device, a first visual positioning device, a feeding transmission device, a turntable device, a laser sintering device and a discharging transmission device, wherein the feeding transmission device, the silicon wafer guide device, the first visual positioning device, the feeding transmission device and the turntable device are arranged around the printing turntable; a table top jack-up device is arranged on the turntable; after the silicon wafer is conveyed to the final belt position by the feeding transmission device (the belt is a specially-made belt with holes, vacuum is communicated below the belt, a battery piece can be adsorbed, and accurate positioning is realized), the battery piece is jacked by the lower table top jacking device, the turntable is rotated to the position below the laser head according to the image coordinates provided by the first visual positioning device, and an industrial control opportunity calculates and adjusts the laser sintering position and carries out hot melting, curing and sintering on the electrode patterns on the silicon wafer; on one hand, the area of the battery piece subjected to high temperature can be effectively reduced, the conversion efficiency of the battery piece is improved, the energy consumption cost is reduced, and on the other hand, the consumption of electric energy is greatly reduced.
Description
Technical Field
The invention relates to the field of solar cell production, in particular to a solar cell silk screen laser sintering automation device.
Background
At present, a metal electrode is used as an important form for collecting photo-generated current of a solar cell, and is basically formed by screen printing metal wet slurry during production, then the wet metal electrode is subjected to low-temperature hot melting and solidification by a chain type sintering furnace, and then is sintered at high temperature and cooled to form a metal electrode with good ohmic contact. In the prior art, when a battery piece passes through a channel of a chain sintering furnace, a metal electrode contact area and a metal electrode non-contact area on the front side and the back side of the whole battery piece are baked by heat of the chain sintering furnace, and the high temperature can not only amplify internal defects of the battery piece, but also damage passivation effects of a silicon nitride film and an aluminum oxide film layer on the front side/the back side of the battery piece, so that conversion efficiency of the battery piece is affected. On the other hand, the equipment wire body of the chain type sintering furnace is long, the occupied space is large, the sintering process requirement of the metal electrode can be met only by continuously electrifying and heating, and the electricity consumption is high.
Disclosure of Invention
Aiming at the technical problems, the invention provides an automatic device for laser sintering of a solar cell wire mesh.
The solar cell silk screen laser sintering automation equipment comprises a printing turntable, an image positioning system, a laser sintering system, a feeding transmission device, a silicon wafer guide device, a first visual positioning device, a feeding transmission device, a turntable device, a laser sintering device and a discharging transmission device, wherein the feeding transmission device, the silicon wafer guide device, the first visual positioning device, the feeding transmission device and the turntable device are arranged around the printing turntable;
four table tops are uniformly distributed along the circumferential direction of the turntable and can be respectively positioned on the feeding transmission device, the silicon wafer guide device, the silicon wafer positioning device, the first visual positioning device, the laser sintering device and the blanking transmission device when the turntable is stationary;
the device comprises a turntable, an image positioning system, a laser sintering system, a feeding transmission device, a silicon wafer guide device, a first visual positioning device, a feeding transmission device, a turntable device, a laser sintering device and a discharging transmission device, wherein the feeding transmission device, the silicon wafer guide device, the first visual positioning device, the feeding transmission device, the turntable device, the laser sintering device and the discharging transmission device are arranged around a printing turntable; a table top jack-up device is arranged on the turntable; after the silicon wafer is conveyed to the final belt position by the feeding transmission device (the belt is a specially-made belt with holes, vacuum is communicated below the belt, a battery piece can be adsorbed, and accurate positioning is achieved), the battery piece is jacked up by the lower table top jacking device, the turntable is rotated to the position below the laser head according to the image coordinates provided by the first visual positioning device, and an industrial control opportunity calculates and adjusts the laser sintering position and carries out hot melting, curing and sintering on electrode patterns on the silicon wafer.
Preferably, the feeding and discharging transmission devices comprise a conveyor belt mechanism driven by a motor and a fixing component for fixing the conveyor belt mechanism; the table top carrying mechanism can move along with the rotation of the turntable to be in butt joint with the conveying belt mechanism.
Preferably, two rows of positioning rollers for preventing the silicon wafer from deviating are arranged on two sides of the conveyor belt mechanism.
Preferably, the laser sintering device comprises a laser assembly and a laser adjusting mechanism; the laser adjusting mechanism is in communication connection with the first visual positioning device, so that the position of the laser component is adjusted according to the image provided by the first visual positioning device, and the laser component is controlled to perform hot melting, solidification and sintering on the electrode pattern on the silicon wafer.
Preferably, the laser sintering device further comprises a laser irradiation camera bellows, an exhaust pipe for dust removal and a dust collection box connected with the exhaust pipe; the laser assembly is installed in the laser irradiation camera bellows.
Preferably, the number of the table tops of the turntable is four, the four table tops are uniformly distributed along the circumferential direction of the turntable, and the four table tops can be respectively positioned at stations corresponding to the feeding transmission device, the silicon wafer guide device, the silicon wafer positioning device, the first visual positioning device, the laser sintering device and the discharging transmission device when the turntable is static.
The beneficial effects of the invention are as follows: the laser sintering device is used for replacing a chain type sintering furnace to perform hot melting, solidification and sintering on the electrode patterns on the silicon wafer, so that the occupied space of equipment is greatly reduced on one hand; on the other hand, the area of the battery piece subjected to high temperature can be effectively reduced, the energy consumption cost can be greatly reduced, and the conversion efficiency of the silicon chip is improved and the energy consumption cost is reduced.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a loading positioning structure according to the present invention;
fig. 3 is a schematic diagram of a third embodiment of an image acquisition system according to the present invention:
figure 1: the device comprises a man-machine control interface 1, a dust extraction device 2, an influence system 3, a turntable 4, a table top 5, a table top jacking device 6, a silicon wafer guide device 7, a feeding positioning device 8 and a laser sintering device 9.
And (2) a diagram II: comprises a belt 1 with holes, a vacuum pipeline 2 and a belt bracket.
Drawing III: the device comprises an image acquisition device 1 (one edge finding and four mark finding point cameras), an infrared lamp panel 2 of the camera, a movable camera support 3 and an image acquisition device support.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
An automatic solar cell wire mesh laser sintering device, as shown in figure 1, comprises a man-machine control interface 1, a dust extraction device 2, an influence system 3, a turntable 4, a table top 5, a table top jacking device 6, a silicon wafer guide device 7, a loading and unloading belt transmission device 8 and a laser sintering device 9.
4 mesas (A/B/C/D) are evenly arranged on the turntable 4, a jacking device 6 is arranged below the mesas, when a silicon wafer is placed on the A mesas, the mesas jack up and take pieces and then rotate to the lower part of the laser sintering device 9 to perform laser sintering, at the moment, the B mesas are arranged below the feeding belt, the jacking and take pieces to take photos and locate the photos in the laser sintering process, after the sintering process is completed, the turntable rotates, the A mesas are rotated to the position of the blanking belt, the jacking device falls down, the silicon wafer realizes the blanking function, at the moment, the B mesas are positioned at the laser sintering position, and the same cycle enables all procedures to be performed simultaneously, so that the working efficiency is ensured.
The first vision guide positioning device 7 and the positioning device 8 are used for assisting in collecting the image device to be transmitted to the silicon wafer below the laser sintering device. The laser sintering device 9 comprises a laser component (a laser beam expander, a laser beam warping, a light path channel and the like) and a laser adjusting mechanism; the laser adjusting mechanism is in communication connection with the first visual positioning device, so that the position of the laser assembly is adjusted according to the image provided by the first visual positioning device, the laser assembly is controlled to carry out hot melting, solidification and sintering on electrode patterns on the silicon wafer, and the laser sintering device further comprises a dust extraction pipeline 2 which can cool and remove dust from the processed silicon wafer.
The invention has the advantages that:
1. reducing the overall occupation space of the equipment
2. The area of the battery piece subjected to high temperature is effectively reduced through the laser sintering device, and the conversion efficiency of the battery piece is improved
3. Replace a chain sintering furnace to greatly reduce the energy consumption cost
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.
Claims (7)
1. The utility model provides a solar cell silk screen laser sintering automation equipment which characterized in that: the device comprises a printing rotary table, an image positioning system, a laser sintering system, a feeding transmission device, a vacuum positioning device, a feeding transmission device, a rotary table device, a laser sintering device and a discharging transmission device, wherein the feeding transmission device, the vacuum positioning device, the feeding transmission device, the rotary table device, the laser sintering device and the discharging transmission device are arranged around the printing rotary table; a table top jack-up device is arranged on the turntable;
the printing turntable is provided with a table top and a jacking mechanism for bearing and carrying the silicon wafer; after the silicon wafer is conveyed to the vacuum positioning belt by the feeding conveying device, the silicon wafer is jacked up, then a camera shoots the battery piece to calculate coordinates, the rotation of the printing rotary table passes through the laser sintering position and then the rotation of the printing rotary table passes through the discharging conveying position, and finally the sintering and conveying work of the battery piece is realized;
the first visual positioning device is used for collecting images to be transmitted to the silicon wafer below the laser sintering device; and the laser sintering device adjusts the laser position according to the image provided by the first visual positioning device and carries out hot melting, solidification and sintering on the electrode pattern on the silicon wafer.
2. The solar cell wire mesh laser sintering automation device of claim 1, wherein: the silicon wafer is conveyed to the position of the positioning belt by the feeding belt, jacked up by the table top, then rotated to the laser sintering position by the turntable, and then rotated to the position of the discharging belt, so that the butt joint transmission with the discharging belt is realized.
3. The solar cell wire mesh laser sintering automation device of claim 2, wherein: two rows of positioning rollers for preventing the silicon wafer from deviating are arranged on two sides of the conveyor belt mechanism.
4. The solar cell wire mesh laser sintering automation device of claim 1, wherein: the device comprises a printing rotary table, an image positioning system, a laser sintering system, a feeding transmission device, a silicon wafer guide device, a first visual positioning device, a feeding transmission device, a rotary table device, a laser sintering device and a discharging transmission device, wherein the feeding transmission device, the silicon wafer guide device, the first visual positioning device, the feeding transmission device, the rotary table device and the discharging transmission device are arranged around the printing rotary table.
5. The solar cell wire mesh laser sintering automation device of claim 1, wherein: the laser sintering device comprises a laser component (a laser beam expander, a laser beam warping, a light path channel and the like) and a laser adjusting mechanism; the laser adjusting mechanism is in communication connection with the first visual positioning device, so that the position of the laser component is adjusted according to the image provided by the first visual positioning device, and the laser component is controlled to perform hot melting, solidification and sintering on the electrode pattern on the silicon wafer.
6. The solar cell wire mesh laser sintering automation device of claim 5, wherein: the laser sintering device also comprises a laser irradiation camera bellows and a dust-removing air exhaust pipeline; the laser assembly is installed in the laser irradiation camera bellows.
7. The solar cell wire mesh laser sintering automation device of any of claims 1-6, wherein: the four table tops are uniformly distributed along the circumferential direction of the turntable and can be respectively positioned at stations corresponding to the feeding transmission device, the silicon wafer guide device, the silicon wafer positioning device, the first visual positioning device, the laser sintering device and the discharging transmission device when the turntable is stationary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310459714.8A CN116646420A (en) | 2023-04-26 | 2023-04-26 | Automatic solar cell wire mesh laser sintering equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310459714.8A CN116646420A (en) | 2023-04-26 | 2023-04-26 | Automatic solar cell wire mesh laser sintering equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116646420A true CN116646420A (en) | 2023-08-25 |
Family
ID=87614358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310459714.8A Pending CN116646420A (en) | 2023-04-26 | 2023-04-26 | Automatic solar cell wire mesh laser sintering equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116646420A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117766639A (en) * | 2024-02-20 | 2024-03-26 | 昆山鸿仕达智能科技股份有限公司 | Laser-induced processing equipment for photovoltaic cell |
| CN117766639B (en) * | 2024-02-20 | 2024-05-31 | 昆山鸿仕达智能科技股份有限公司 | Laser-induced processing equipment for photovoltaic cell |
-
2023
- 2023-04-26 CN CN202310459714.8A patent/CN116646420A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117766639A (en) * | 2024-02-20 | 2024-03-26 | 昆山鸿仕达智能科技股份有限公司 | Laser-induced processing equipment for photovoltaic cell |
| CN117766639B (en) * | 2024-02-20 | 2024-05-31 | 昆山鸿仕达智能科技股份有限公司 | Laser-induced processing equipment for photovoltaic cell |
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